CA1200604A - Optical memory system having an improved long seek capability - Google Patents
Optical memory system having an improved long seek capabilityInfo
- Publication number
- CA1200604A CA1200604A CA000421796A CA421796A CA1200604A CA 1200604 A CA1200604 A CA 1200604A CA 000421796 A CA000421796 A CA 000421796A CA 421796 A CA421796 A CA 421796A CA 1200604 A CA1200604 A CA 1200604A
- Authority
- CA
- Canada
- Prior art keywords
- track
- control means
- position control
- signal
- track following
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08517—Methods for track change, selection or preliminary positioning by moving the head with tracking pull-in only
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08529—Methods and circuits to control the velocity of the head as it traverses the tracks
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
- G11B7/08564—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements using galvanomirrors
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
- G11B7/0903—Multi-beam tracking systems
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US349,468 | 1982-02-17 | ||
US06/349,468 US4432082A (en) | 1982-02-17 | 1982-02-17 | Optical memory system having a long seek capability |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1200604A true CA1200604A (en) | 1986-02-11 |
Family
ID=23372530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000421796A Expired CA1200604A (en) | 1982-02-17 | 1983-02-17 | Optical memory system having an improved long seek capability |
Country Status (6)
Country | Link |
---|---|
US (1) | US4432082A (de) |
EP (1) | EP0088537B1 (de) |
JP (1) | JPS59500245A (de) |
CA (1) | CA1200604A (de) |
DE (1) | DE3375955D1 (de) |
WO (1) | WO1983003026A1 (de) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5972685A (ja) * | 1982-10-20 | 1984-04-24 | Hitachi Ltd | ビデオデイスクプレ−ヤ |
NL8303029A (nl) * | 1983-08-31 | 1985-03-18 | Philips Nv | Inrichting voor het uitlezen van een schijfvormige optische registratiedrager. |
EP0158193B1 (de) * | 1984-03-24 | 1989-07-05 | Sony Corporation | Optisches Plattengerät |
JPS60256927A (ja) * | 1984-06-01 | 1985-12-18 | Nippon Gakki Seizo Kk | 光学式デイスク再生装置の読取り制御装置 |
JPH0612572B2 (ja) * | 1985-03-08 | 1994-02-16 | オリンパス光学工業株式会社 | 光学的情報記録再生装置 |
JPH06103535B2 (ja) * | 1985-06-12 | 1994-12-14 | オリンパス光学工業株式会社 | 光学式情報記録再生装置 |
US4959823A (en) * | 1985-07-30 | 1990-09-25 | Laser Magnetic Storage International Company | Tracking and seeking system for use with an optical record carrier having a wobbled track format |
US4879707A (en) * | 1985-07-30 | 1989-11-07 | Laser Magnetic Storage International Company | Optical disk tracking and seeking systems specific track formats using discontinuities |
ATE84631T1 (de) * | 1985-07-30 | 1993-01-15 | Philips Nv | Generatorkreis fuer spursignal und aufzeichnungstraeger dafuer. |
US4879708A (en) * | 1985-07-30 | 1989-11-07 | Laser Magnetic Storage International Company | Optical disk tracking and seeking systems specific track formats using wobbled pits |
US4768180A (en) * | 1986-03-17 | 1988-08-30 | Laser Magnetic Storage International Company | Multistage tracking system |
JPH0748257B2 (ja) * | 1987-05-07 | 1995-05-24 | 富士通株式会社 | 光ディスク装置のマルチトラックジャンプ回路 |
JP2557896B2 (ja) * | 1987-07-31 | 1996-11-27 | 株式会社東芝 | ディスク装置 |
US5031166A (en) * | 1988-01-25 | 1991-07-09 | Laser Magnetic Storage International Company | Optical disk tracking and seeking systems and specific track formats using discontinuities and circuitry therefor |
US5050144A (en) * | 1989-12-11 | 1991-09-17 | International Business Machines Corporation | Recording intensity modulated signals and polarization-modulated optical signals in the same area of a storage member |
US5475665A (en) * | 1991-10-08 | 1995-12-12 | Olympus Optical Co., Ltd. | Optical information writing and reading apparatus having two light sources |
US5680624A (en) * | 1993-12-21 | 1997-10-21 | Object Licensing Corporation | Object oriented interrupt system |
US5821981A (en) * | 1996-07-02 | 1998-10-13 | Gerber Systems Corporation | Magnetically preloaded air bearing motion system for an imaging device |
US5841567A (en) * | 1996-07-02 | 1998-11-24 | Barco Gerber Systems | Method and apparatus for imaging at a plurality of wavelengths |
US5828501A (en) * | 1996-07-02 | 1998-10-27 | Barco Gerber Systems | Apparatus and method for positioning a lens to expand an optical beam of an imaging system |
US5912458A (en) * | 1997-04-18 | 1999-06-15 | Gerber Systems Corporation | Multiple beam scanning system for an imaging device |
US5938187A (en) * | 1997-04-18 | 1999-08-17 | Gerber Systems Corporation | Media feed apparatus for an imaging device |
US6042101A (en) * | 1997-06-03 | 2000-03-28 | Gerber Systems Corporation | Automated media transport device and method of using the same |
US7251201B2 (en) * | 2003-08-14 | 2007-07-31 | Media Tek Inc. | Method of searching new writable address for optical recordable medium |
JP2008108335A (ja) * | 2006-10-24 | 2008-05-08 | Funai Electric Co Ltd | 光ディスク装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL173343C (nl) * | 1972-03-29 | 1984-01-02 | Philips Nv | Inrichting voor het uitlezen van een schijfvormige registratiedrager met in optische vorm gecodeerde beeld-en/of geluidssignalen. |
US4037252A (en) * | 1973-11-10 | 1977-07-19 | U.S. Philips Corporation | Apparatus for reading a disc-shaped record carrier with plural scanning spots for stable radial tracking |
NL7509906A (nl) * | 1975-08-21 | 1977-02-23 | Philips Nv | Inrichting voor het uitlezen van een schijfvor- mige registratiedrager. |
GB1577133A (en) * | 1976-03-19 | 1980-10-22 | Rca Corp | Video information record and playback apparatus |
FR2349191A1 (fr) * | 1976-04-23 | 1977-11-18 | Thomson Brandt | Lecteur optique de disque d'information comportant un dispositif d'acces automatique aux informations |
FR2396379A1 (fr) * | 1977-07-01 | 1979-01-26 | Thomson Brandt | Lecteur optique de disque d'information muni d'un dispositif d'acces automatique aux informations |
JPS5913101B2 (ja) * | 1977-12-16 | 1984-03-27 | 株式会社日立製作所 | ランダムアクセス方法 |
NL187413C (nl) * | 1978-03-16 | 1991-09-16 | Philips Nv | Registratiedragerlichaam, ingeschreven registratiedrager, werkwijze voor het inschrijven van het registratiedragerlichaam en inrichting voor het uitvoeren van de werkwijze en voor het uitlezen van een ingeschreven registratiedrager. |
EP0007199B1 (de) * | 1978-06-30 | 1986-12-30 | Discovision Associates | Verfahren und Vorrichtung zur Informationswiedergabe von einem optisch lesbaren Speichermedium |
US4375091A (en) * | 1978-06-30 | 1983-02-22 | Discovision Associates | Method and apparatus for information retrieval from an optically readable storage medium |
NL7810386A (nl) * | 1978-10-17 | 1980-04-21 | Philips Nv | Optische leesinrichting voor het uitlezen van een schijfvormige registratiedrager. |
NL7812111A (nl) * | 1978-12-13 | 1980-06-17 | Philips Nv | Inrichting voor het optisch uitlezen van een schijf- vormige registratiedrager, in het bijzonder het snel opzoeken van een gewenst programmagedeelte. |
JPS55125541A (en) * | 1979-03-16 | 1980-09-27 | Matsushita Electric Ind Co Ltd | Retrieval unit |
JPS6048809B2 (ja) * | 1979-10-16 | 1985-10-29 | パイオニアビデオ株式会社 | 情報読取装置におけるトラッキングサ−ボ引込装置 |
-
1982
- 1982-02-17 US US06/349,468 patent/US4432082A/en not_active Expired - Lifetime
-
1983
- 1983-02-17 EP EP83300800A patent/EP0088537B1/de not_active Expired
- 1983-02-17 DE DE8383300800T patent/DE3375955D1/de not_active Expired
- 1983-02-17 WO PCT/US1983/000215 patent/WO1983003026A1/en unknown
- 1983-02-17 JP JP58501119A patent/JPS59500245A/ja active Pending
- 1983-02-17 CA CA000421796A patent/CA1200604A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0088537A1 (de) | 1983-09-14 |
DE3375955D1 (en) | 1988-04-14 |
US4432082A (en) | 1984-02-14 |
EP0088537B1 (de) | 1988-03-09 |
WO1983003026A1 (en) | 1983-09-01 |
JPS59500245A (ja) | 1984-02-16 |
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CA1200604A (en) | Optical memory system having an improved long seek capability | |
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EP0089119B1 (de) | Optisches Speichersystem mit Kurzzugriff-Einrichtung | |
US4435797A (en) | Optical memory system having track following and seeking capabilities | |
US4674076A (en) | Optical memory system having improved positioning and focusing control circuitry | |
US4669074A (en) | Focusing control circuitry for an optical memory system | |
EP0096969B1 (de) | Optisches Speichersystem mit Einrichtung zur Positionier- und Fokussierregelung | |
EP0095852A1 (de) | Einrichtung zur Fokussierregelung für ein optisches Speichersystem | |
JPS59500884A (ja) | 改良された位置及び焦点制御回路を有する光学メモリシステム | |
JPS59500885A (ja) | 光学メモリシステムのための焦点制御回路 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |